Just a fact based comparison of three different cameras; one being a M4:
- Mamiya Six is by far the largest in volume among the three. Even when “folded,” its camera body is quite big compared to the Leica, though it’s obviously built around a medium-format mechanism.
- Super Ikonta is a good compromise: a 6×6 folder, but when folded it is only about twice the volume of the Leica M4 — not tiny, but more pocketable than the Mamiya Six.
- Leica M4 is clearly the most compact and lightweight — less than half the volume of the Mamiya Six, and considerably lighter — which is a huge advantage if your concern is “how pocketable / carryable” a camera is.
My 6x6 Perkeo ll is much more compact than an M4
